CVE-2024-40766

Known Exploited

Description

An improper access control vulnerability has been identified in the SonicWall SonicOS management access, potentially leading to unauthorized resource access and in specific conditions, causing the firewall to crash. This issue affects SonicWall Firewall Gen 5 and Gen 6 devices, as well as Gen 7 devices running SonicOS 7.0.1-5035 and older versions.

Category

9.8
CVSS
Severity: Critical
CVSS 3.1 •
EPSS 18.33% Top 10%
KEV Since 
Vendor Advisory sonicwall.com
Affected: SonicWall SonicOS
Published at:
Updated at:

References

Frequently Asked Questions

What is the severity of CVE-2024-40766?
CVE-2024-40766 has been scored as a critical severity vulnerability.
How to fix CVE-2024-40766?
To fix CVE-2024-40766, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2024-40766 being actively exploited in the wild?
It is confirmed that CVE-2024-40766 is actively exploited. Be extra cautious if you are using vulnerable components. According to its EPSS score, there is a ~18% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2024-40766?
CVE-2024-40766 affects SonicWall SonicOS.
This platform uses data from the NIST NVD, MITRE CVE, MITRE CWE, First.org and CISA KEV but is not endorsed or certified by these entities. CVE is a registred trademark of the MITRE Corporation and the authoritative source of CVE content is MITRE's CVE web site. CWE is a registred trademark of the MITRE Corporation and the authoritative source of CWE content is MITRE's CWE web site.
© 2025 Under My Watch. All Rights Reserved.